Lg Innotek Co., Ltd.

Kyung Pil Kim

Hyun Ju Lee

Chang Soo Kim

Jae Soo Yoo

Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAlO-cSiN, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm (where M is one kind or two kinds of elements selected from Mg, Ca, Sr, and Ba (0.2&#x2266;a/(a+b)&#x2266;0.9, 0.05&#x2266;b/(b+c)&#x2266;0.85, 0.4&#x2266;c/(c+a)&#x2266;0.9)).

Phosphor, phosphor manufacturing method, and white light emitting device

Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAlN-cSiN, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm. (where M is one selected from alkaline earth metals (0.2&#x2266;a/(a+b)&#x2266;0.9, 0.05&#x2266;b(b+c)&#x2266;0.85, 0.4&#x2266;c/(c+a)&#x2266;0.9)).

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Seoul, South Korea

Kyung Pil Kim